Introduction
Blood is one of the most vital fluids in your body. It is slightly sticky and thicker than water as it is made of both solids and liquids. The liquid part of the blood is known as plasma and it consists of water, protein, and salts. Plasma amounts to around 50% of the total volume of blood in the body. The solid portion of the blood is made up of white blood cells, red blood cells, and platelets.
The amount of blood present in your body usually depends on your weight and size. An individual who weighs 70 kg will have around 5 to 6 litres of blood, making up nearly 7 to 8% of their total body volume.
Why is blood important?
Blood is one of the most essential forces for the preservation of human life. Here are some of the general functions of blood.
- It helps transport nutrients, gases, waste products, and hormones through the body.
- It makes up the immune system and thus performs numerous immunological functions.
- It makes up the immune system and thus performs numerous immunological functions.